diff --git a/src/dns.c b/src/dns.c
index 15fa15a79099b1faf28af0a20ef9a629eacc2ad2..0494b4baeb20494f3a00fdb629eb2d738b637077 100644 (file)
--- a/src/dns.c
+++ b/src/dns.c
#include "common.h"
#include "plugin.h"
-#include "configfile.h"
#include "utils_dns.h"
#include <poll.h>
#include <pcap.h>
+#ifdef HAVE_SYS_CAPABILITY_H
+# include <sys/capability.h>
+#endif
+
/*
* Private data types
*/
listen_thread_init = 1;
+#if defined(HAVE_SYS_CAPABILITY_H) && defined(CAP_NET_RAW)
+ if (check_capability (CAP_NET_RAW) != 0)
+ {
+ if (getuid () == 0)
+ WARNING ("dns plugin: Running collectd as root, but the CAP_NET_RAW "
+ "capability is missing. The plugin's read function will probably "
+ "fail. Is your init system dropping capabilities?");
+ else
+ WARNING ("dns plugin: collectd doesn't have the CAP_NET_RAW capability. "
+ "If you don't want to run collectd as root, try running \"setcap "
+ "cap_net_raw=ep\" on the collectd binary.");
+ }
+#endif
+
return (0);
} /* int dns_init */